下列属于违反治安管理行为的客观要件的是( ) A．危害行为 B．危害结果 C．妨碍

痫病之痰具有的两大特点是

A．阻滞气血运行

B．影响水液代谢

C．随风气聚散

D．胶固难化

E．致病面广，变幻多端

One of the judges _____ to Gana's film festival was a famous actress from China, Zhang Ziyi. [ ]

A. invited

B. to invite

C. had been invited

D. being invited

炉渣“返干”

下列何者具有折光作用（）。

A.巩膜

B.虹膜

C.视网膜

D玻璃体

什么是换热强度？